I live in an area with sane public transport, and if my kids need to get somewhere I can also drive them.
The amount of children with cars in my area would be a singular percentage.
As to phones, why would your child require a phone? I'm sure there are some useful scenarios - obsessive tracking, easy contact, etc - but these aren't necessary. For hundreds of generations kids didn't have phones (and billions around the world still don't), and it's rarely an issue.
If they want one, surely they can get a job and pay for one?